"198d" was written about drummer Tony Hajjar's grandmother, who was buried in a mass grave in Lebanon. The title was taken from an inscription on her gravestone.

The EP saw a limited of 500 vinyl release at 2012's Coachella Music Festival to celebrate the band's first performances together in 11 years. The 10" was then re-released as a hot-pink vinyl on June 5, 2012 with 1,500 copies in North American and 1,500 copies elsewhere. A vibrant red edition of 1,000 of the 10" was also available from Hot Topic stores.